LH351D 4000K 90cri group buy.

157 posts / 0 new
Last post

Pages

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow
LH351D 4000K 90cri group buy.

Upd 23.04 351B are received.
UPD 17.04 PM are sent to all who buy 351D only. 351B will arrive next week.
Upd 12.04 All 351D are reserved. What is next?
I’ll get them on 16.04 then I’ll send my PP address with invoice)

upd 10.04 The second butch is 320pcs

upd 7.04
First small bunch is sold out .
I’ll order more 351 in a week(+3 days to get it).
The price is the same 1.6$/pcs + 5$ registered post ( + PP fee of course).
So please express your interest in this thread, I’ll make a list.
Small discout for orders >20pcs – 1.5$/pcs

Interest list
1)(pm)20pcs done
2)Edness 6 pcs done
3)Barkuti 16pcs 3xXPG3 18×351B done
4)(pm)3pcs done
5)djozz 10pcs done
6)CRX 5pcs done
7)mrheosuper —10pcs
8)maukka 10pcs done
9)doubleone44 5 + 5*351B
10)khas 6. done 6*351B done
11)HarleyQuin 10 done
12)charles lin 9 done
13)bunnicula 20 +2*xp16 +20*351B
14)gisewhcs 10 done
15)prisma 10 done
16)ImA4Wheelr 24 done
17)s1m888 10 done
18)Sledgestone —20
19)BlueSwordM 6 6 351B done
20)GrayEngineer 9 done
21)azhu 50 done 20 351B done
22)g_damian 8 done
23)Lightbringer 25 12 351B done
24)Tally-ho 16 done
25)muellihenry 15 done
26)MustSimon 3 3 351B
27)(pm)10 done
28)boaz 6 +10 351B done

29)staticx57 351B 10 done

Total 351D: 320 /320
351B : 100/120

upd. 22.03.18
These leds were temorarily out of stock.
Now I have small bunch of them 49 pcs to study interest. All sold out.
90cri LH351D 4000K (SPHWHTL3DA0GF4T0Q6. cri=93 r9=75 according measurements)
As I already said 1.6$/pcs. 5$ registred post.
IMG_20180322_103504

I found source of cheap 90cri LH351D 4000K
SPHWHTL3DA0GF4T0Q6.
It is new 3535 Samsung led with Max current 3A. It can work with carclo triple optics.
So I can provide opportunity to buy for 1.6$
Could it be interesting for someone?

Guys from superfonarik.ru helps with measurements.
LH351D 4000K

LH351B 3000K 90cri
XP-G3 5700K 90cri
The last 2 LED also very cheap ~0.5$ and 1$ respectively.

Edited by: AEDe on 04/24/2018 - 00:29
Virisenox_
Virisenox_'s picture
Offline
Last seen: 3 weeks 5 days ago
Joined: 07/12/2017 - 11:37
Posts: 39
Location: Sitting in front of my laptop

According to this sheet, the Q6 flux rank emitters only do 764 lumens at 3A. That’s only 40 lumens less than the equivalent 219C according to this test. How’s the tint?

I’m much more active on /r/flashlight.

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

Virisenox_ wrote:
According to this sheet, the Q6 flux rank emitters only do 764 lumens at 3A. That’s only 40 lumens less than the equivalent 219C according to this test. How’s the tint?

I bought a couple of pieces.
Exact bin was F2T7Q2. I found it less greenish than 219c 4000, but I plan to measure it in sphere to be more strict.
Barkuti
Barkuti's picture
Offline
Last seen: 6 hours 10 min ago
Joined: 02/19/2014 - 14:46
Posts: 2303
Location: Alhama de Murcia, Spain

Subscribed. 

Let us know if you decide to grab a nice bunch of them, pricing and shipping costs.

 

Cheers Party

djozz
djozz's picture
Offline
Last seen: 45 min 41 sec ago
Joined: 09/07/2012 - 17:04
Posts: 11964
Location: Amsterdam

Yes, I’d be interested but a bit anxious of the tint and beam profile it produces. The 90CRI 4000K LG led that Jaxman used recently was very green and caused an ugly tint shift in the various optics (link to maukka’s test), and I always thought that Samsung and LG were very similar. But if you say the tint is as good or better than the 90CRI 219C, and if you could find out that the tint shift when used in a flashlight is not bad I’m convinced I would like some for that price Smile

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow
Barkuti wrote:
Let us know if you decide to grab a nice bunch of them, pricing and shipping costs

Now I try to decide with quantity.)
Pricing and shipping will be 1.6$/pcs and 5$ (with tracking number)

maukka
maukka's picture
Online
Last seen: 3 min 31 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1019
Location: Finland
djozz wrote:
The 90CRI 4000K LG led that Jaxman used recently was very green and caused an ugly tint shift in the various optics (link to maukka’s test), and I always thought that Samsung and LG were very similar.

At least the CRI70 5000K Samsung LH351D was good with a suitable reflector. But it wouldn’t be the first time when a higher CRI and lower CCT emitter would be worse…

Billy X
Billy X's picture
Offline
Last seen: 12 hours 4 min ago
Joined: 02/03/2013 - 05:50
Posts: 541
Location: South of France

I’m interested.

Barkuti
Barkuti's picture
Offline
Last seen: 6 hours 10 min ago
Joined: 02/19/2014 - 14:46
Posts: 2303
Location: Alhama de Murcia, Spain

F2T7Q2 bin. T7 refers to the chromaticity coordinates, about over if slightly below the blackbody locus, and a tad less than 4000K. Shouldn't look greenish at all.

 

Cheers Party

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

These leds were temorarily out of stock.
Now I have small bunch of them 49pcs to study interest.
As I already said 1.6$/pcs. 5$ registred post. Write PM if you are interested.
IMG_20180322_103504

1C3
Offline
Last seen: 31 min 26 sec ago
Joined: 03/30/2017 - 06:42
Posts: 71
Location: Italy

That T7 color bin looks like it sits very close to cree’s 5A2, which has been my favorite tint so far, I’ll definitely have to try some of these.

The_Driver
The_Driver's picture
Offline
Last seen: 7 hours 24 min ago
Joined: 10/20/2016 - 05:51
Posts: 825
Location: Germany

maukka, are you going to test these? Smile

maukka
maukka's picture
Online
Last seen: 3 min 31 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1019
Location: Finland

Received my 3x LH351D today. Installed them inside a Wuben TO46R. They’re really nice. No tint shift to speak of in the clear triple optics. A simple filter will perfect the tint on most modes if you need to be on the BBL. On higher currents it’s already superb.

And what’s amazing. It offers Nichia like beam quality but reaches output comparable to the XP-G3. I measured equal lumens before and after the swap. Although one of the original XP-G3s was dedomed so didn’t probably live to its true potential.

1C3
Offline
Last seen: 31 min 26 sec ago
Joined: 03/30/2017 - 06:42
Posts: 71
Location: Italy

Very nice, I should be getting some soon, I’m planning to put them behind frosted optics in an E2L host

Billy X
Billy X's picture
Offline
Last seen: 12 hours 4 min ago
Joined: 02/03/2013 - 05:50
Posts: 541
Location: South of France

I received my 6LH251’s yesterday.No time to do anything at the moment.Thanks AEDe.
Looks good Mauka.

Agro
Online
Last seen: 1 min 55 sec ago
Joined: 05/14/2017 - 11:16
Posts: 1844
Location: Ślōnsk

Is it the same output with regulated driver or with FET?

The_Driver
The_Driver's picture
Offline
Last seen: 7 hours 24 min ago
Joined: 10/20/2016 - 05:51
Posts: 825
Location: Germany

Thanks Maukka!! I appreciate it.

They are XP-L sized. I think they should be compared to the XP-L2 90CRI 4000K 2-Step, which is very efficient, but has a terrible tint (Duv 0.6 in the low/mid modes with reflector – SC64c). So this LED is indeed much better, similar to the Nichia 219C 4000K R9050 (which has a somewhat yellow tint though). At high currents it is probably noticeably brighter than the 219C R9050.

EDIT: I just checked the datasheet. At 3A the Vf is only 3.28V and the thermal resistance is 2.2°C/W. So it’s actually quite compareable to other XP-L sized LEDs. 765-810lm @3A & 85°C. 77-82lm/W, so definitely worse than the XP-L2 in that regard, but only because of the used Bin.

EDIT2: I just compared these measurements to thos of the Nichia 219C 4000K R9050 403. The Samsung LED has a higher TM-30-15 Rf & Rg, a higher R9-value and a more balanced spectrum. The Duv ist very similar (unfortunately…).

Barkuti
Barkuti's picture
Offline
Last seen: 6 hours 10 min ago
Joined: 02/19/2014 - 14:46
Posts: 2303
Location: Alhama de Murcia, Spain

How many of them still available? I may order a bunch next week. 

 

Cheers Smile

maukka
maukka's picture
Online
Last seen: 3 min 31 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1019
Location: Finland

Played with Lee Zircon minus green filters. The results are promising and visually the light is gorgeous. It really makes every color pop, even over saturate (Rg 102). I think I’ll stick with the 804.

With 803 minus green and 17% output loss:

804 minus green and 15% loss:

805 minus green and 11% loss:

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

Thanks, maukka for the tests.

Now I have left only 23pcs of 351D and 4 people send me PM

I’ll send these 23pcs. Then I’ll order more 351 in a week(+3 days to get it).
So please express your interest in this thread, I’ll make a list.
Small discout for orders >20pcs – 1.5$/pcs

1C3
Offline
Last seen: 31 min 26 sec ago
Joined: 03/30/2017 - 06:42
Posts: 71
Location: Italy

Thanks for the measurements! I have a sheet of 804 at home, as soon as these arrive I’ll make good use of it. By the way, does anybody know where to get some good optical glue?

Edness
Edness's picture
Offline
Last seen: 5 hours 11 min ago
Joined: 10/29/2016 - 16:57
Posts: 290
Location: NYC

I’m interested in a few myself.

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

The_Driver wrote:

Great, but maybe you shouldn’t publicly post the contents of PMs.


Deleted, sory if it’s important. But you should delete it yourself too)
The_Driver
The_Driver's picture
Offline
Last seen: 7 hours 24 min ago
Joined: 10/20/2016 - 05:51
Posts: 825
Location: Germany

AEDe wrote:
The_Driver wrote:

Great, but maybe you shouldn’t publicly post the contents of PMs.


Deleted if it’s important. But you should delete it yourself too)

Thanks!

Also than you for offering these in low quantities for such low prices!

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

The_Driver wrote:

Thanks!

Also than you for offering these in low quantities for such low prices!


Actually I simply found strange good shop in nearby with extremely low price where “wholesale” means >35$ ))

https://translate.google.com/translate?sl=ru&tl=en&js=y&prev=_t&hl=ru&ie...

(55р=1$)

So if someone will be interested in something else (not 351D) it is posible to order too.

The_Driver
The_Driver's picture
Offline
Last seen: 7 hours 24 min ago
Joined: 10/20/2016 - 05:51
Posts: 825
Location: Germany

AEDe wrote:
The_Driver wrote:

Thanks!

Also than you for offering these in low quantities for such low prices!


Actually I simply found strange good shop in nearby with extremely low price where “wholesale” means >35$ ))

https://translate.google.com/translate?sl=ru&tl=en&js=y&prev=_t&hl=ru&ie...

(55р=1$)

So if someone will be interested in something else (not 351D) it is posible to order too.

Well, still, you’re doing the work ;).

Thats interesting. Is there a version of this LED with a smaller (1mm^2) die, like the Cree XP-E and Nichia NCSL219B?

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

The_Driver wrote:

Thats interesting. Is there a version of this LED with a smaller (1mm^2) die, like the Cree XP-E and Nichia NCSL219B?

Yes 351B max current is 1.5A. https://e-neon.ru/moschnyie-svetodiodyi/moschnyie-svetodiodyi-1/sphwh2l3...
There is also 351C max current 2A. But I dont know chip dimensions.
The_Driver
The_Driver's picture
Offline
Last seen: 7 hours 24 min ago
Joined: 10/20/2016 - 05:51
Posts: 825
Location: Germany
AEDe wrote:
The_Driver wrote:
Thats interesting. Is there a version of this LED with a smaller (1mm^2) die, like the Cree XP-E and Nichia NCSL219B?
Yes 351B. https://translate.google.com/translate?sl=ru&tl=en&js=y&prev=_t&hl=ru&ie...

I’m not sure. The die seems a bit bigger compared to that of the XP-E2, but everything else (max current etc.) is the same. Unfortunately they only have the 90CRI version with ~3000K.

AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

The_Driver wrote:
The die seems a bit bigger compared to that of the XP-E2

You are right
!2018_04_07_18_09_05!:
xpg and 351B (90cri 3000K)
AEDe
Offline
Last seen: 1 hour 22 min ago
Joined: 12/01/2016 - 12:07
Posts: 215
Location: Moscow

Barkuti wrote:

How many of them still available? I may order a bunch next week. 


 


Cheers Smile


The shop I used has >400 in stock . I ‘ll make order next week , and I hope I will reseived it at 16.04
djozz
djozz's picture
Offline
Last seen: 45 min 41 sec ago
Joined: 09/07/2012 - 17:04
Posts: 11964
Location: Amsterdam

I just picked mine up at the post office. If time allows I will check one in a flashlight. I’m very curious about the beam profile!

Thanks again for making them available AEDe!

Pages